Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-7a130359-1262-11f0-8ab7-00224825c9fa

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

dbc4794c

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-44a17bd8-ae0b-45fc-9dd6-148e3021ad0e

Comm: tcp://127.0.0.1:37489	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:42157	Total threads: 1
Dashboard: http://127.0.0.1:33891/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:39803
Local directory: /tmp/dask-scratch-space/worker-680hksq_

Worker: 1

Comm: tcp://127.0.0.1:40339	Total threads: 1
Dashboard: http://127.0.0.1:45763/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:36607
Local directory: /tmp/dask-scratch-space/worker-yjul73_1

Worker: 2

Comm: tcp://127.0.0.1:40473	Total threads: 1
Dashboard: http://127.0.0.1:34449/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:40553
Local directory: /tmp/dask-scratch-space/worker-kit1x8wa

Worker: 3

Comm: tcp://127.0.0.1:34661	Total threads: 1
Dashboard: http://127.0.0.1:33555/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:34363
Local directory: /tmp/dask-scratch-space/worker-0jvq6h3e

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)